Certified Passive House Tradesperson (PHI) Airtightness testing with blower doors reveals why many construction teams fail PHI certification—thermal bridging at corners and mechanical penetrations demands precise detailing before framing closes. Applicants benefit from hands-on experience sealing envelopes and understanding PHPP energy modeling software before exam day, as theoretical knowledge alone won’t cover site-specific problem-solving.
| Exam Name | Certified Passive House Tradesperson |
| Exam Code | PHI |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
